Lock and Key

My heart lies under lock and key
Where it slumbers peacefully

There can be no emotional pain
When there is no way to gain

Everyone that comes around
Has tried to lower my wall down

I open the gate but won't let them in
Where did my troubles begin?

Yes, it was you who broke my heart
Now I am so dead and dark

For a time it was so perfect
Now I'm wondering, was it worth it?

I caught you with someone else
Do you realize how I felt?

I don't think I will love again
Maybe this is a sign for my end

I've got the lock but lost the key
Will it ever be retrieved?